Preparing live-initramfs 1.110.3-1.

[live-boot-grml.git] / scripts / live

diff --git a/scripts/live b/scripts/live
index b1157c5..27221ef 100755 (executable)
--- a/scripts/live
+++ b/scripts/live
@@ -79,6 +79,11 @@ Arguments ()
                                export USERFULLNAME LIVECONF
                                ;;
 
+                       ignore_uuid)
+                               IGNORE_UUID="Yes"
+                               export IGNORE_UUID
+                               ;;
+
                        ip=*)
                                STATICIP="${ARGUMENT#ip=}"
 
@@ -434,6 +439,31 @@ is_live_path ()
        return 1
 }
 
+matches_uuid ()
+{
+       if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
+       then
+               return 0
+       fi
+
+       path="${1}"
+       uuid="$(cat /conf/uuid.conf)"
+
+       for try_uuid_file in "${mountpoint}/.disk/casper-uuid"*
+       do
+               [ -e "${try_uuid_file}" ] || continue
+
+               try_uuid="$(cat "${try_uuid_file}")"
+
+               if [ "${uuid}" = "${try_uuid}" ]
+               then
+                       return 0
+               fi
+       done
+
+       return 1
+}
+
 get_backing_device ()
 {
        case "${1}" in
@@ -983,6 +1013,7 @@ check_dev ()
 {
        sysdev="${1}"
        devname="${2}"
+       skip_uuid_check="${3}"
 
        if [ -z "${devname}" ]
        then
@@ -1001,7 +1032,8 @@ check_dev ()
        then
                mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
 
-               if is_live_path ${mountpoint}
+               if is_live_path ${mountpoint} && \
+                       ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
                then
                        echo ${mountpoint}
                        return 0
@@ -1025,7 +1057,7 @@ find_livefs ()
        # first look at the one specified in the command line
        if [ ! -z "${LIVE_MEDIA}" ]
        then
-               if check_dev "null" "${LIVE_MEDIA}"
+               if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
                then
                        return 0
                fi